The head of the Centres for Disease Control and Prevention, Robert Redfield, sounded the alarm about rising trajectories in several jurisdictions, including COVID-19 hospitalisations rising in 12 states, and said it was "critical" that every American takes personal responsibility and "embraces the use of face coverings".
Alarming spikes in new cases in southern hot spots Texas and Florida are driving the daily national total of new cases to over 40,000 per day, and they need to be tamped down quickly to avoid risky surges elsewhere in the country, Dr Fauci stressed.
"We can reverse these concerning trends, if we work together", Giroir said.
"I think the attitude of pushing back from authority and pushing back on scientific data is very concerning", he said.More news: Cole County confirms 11 active COVID cases
"We saw visually in clips and in photographs of individuals in the community doing an all or none phenomenon, which is unsafe", he said.
Fauci also said that questions remain about how long someone who received a vaccination would retain immunity and that the "durability" of immunity could influence how often someone would need to receive an updated vaccine.
"The president has plenty of admirers, they would follow his lead", he added.
"I feel very strongly we need to do whatever we can to get the children back to school".
Though he didn't name names, some in the Republican contingent, President Donald Trump among them, have been downplaying the severity of the pandemic and accusing those businesses and political leaders who enforce precautions like mask-wearing to be infringing on their freedoms.More news: Qualcomm introduces Snapdragon Wear 4100 for next generation wearables
"We should not look at the public health endeavors as being an obstruction to opening up". The president even suggested in a recent Wall Street Journal interview that some people wear masks "as a way to signal disapproval of him".
Trump's opposition to masks is ironic given his obsession with how the pandemic has impacted the economy.
Biden argued Trump could have saved lives and the economy by acting earlier to control the virus. A report by Goldman Sachs economists this week predicted that a national mask requirement "could potentially substitute for lockdowns that would otherwise subtract" almost 5% of the country's GDP.
Dr Anne Schuchat, principal deputy director of the Centers for Disease Control and Prevention (CDC), warned that the USA is not responding like other countries who have shown success in containing the coronavirus, and has allowed the virus to spread much more widely and rapidly. Singapore's outbreak peaked in mid-April when 1,400 new cases were reported in one day. He'd be a good role model. "'MAGA" should now stand for "Masks Are Great Again.' Let me give you some marketing advice right there".More news: New Influenza Virus with 'Pandemic Potential' Found In China